Frictional power-transmission device.



E. H. MANNING.

PRIGTIONAL POWER TRANSMISSION DEVTGB.

- APPLICATION FILED 00T.18,1907.

908,293. Patented Dec.1908.

2 SHEETS-SHEET 1.

E. H. MANNING. FRIGTIONAL POWER TRANSMISSION DEVGB. Arrmowlon FILED ooT.1s,19o7.

Patented M0529, 1908.

' 2 sHBBTs-sHEBT 2.

TIE;

? lull A M E wi h1 eoaeo such as gasolene or other motor, is su EBENEZER H. MANNING, OF ELKHART, INDIANA.

FRICTIONAL POWER-TRANSMISSION DEVICE.`

Specification of Letters Patent.

Patented Dec. 29, 1.908.

Application filed October 18, 1907. Serial No. 398,110.

To all whom it may .con/cem: Be it lmown that I, EBENEZER H. MAN- NING, a citizen of the United States, residing lat Elkhart, inthe county of Elkhart and 5 State of Indiana, have'invented new and useful Improvements in Frictional Power? Transmission Devices, of which the following is a specification.

This inventionrelates to frictional power transmitting devices; and it has for its rincipal object to provide a device of this'c ar'- acter with means for regulating the frictional contact between the transmission members; further objects being to simplify and improve the construction and operation of this class of devices.

With these and other ends in view which will readily appear as the nature of the in.

thatno'limitation is necessarily made to the reclse structural details therein exhibited,

ut that changes, alterations and modifications Within the scope of the invention may be resorted to when desired.

ln the drawings, Figure 1 is a horizontal sectional view of a power transmission device constructed in accordance with the invention. Fig. 2 is a plan view of the-same. Fig. 3 is a side elevation. Fig. 4 is a sectional detail viewtaken on the plane indicated by the line 4 4 in Fig. 2. Fig. 5 is a cross# section through the driven shaft looking to- Ward the face of the main friction disk.

Corresponding arts in the several figures.

are denoted by li e characters of reference.

The frame ,of the improved power transmission device comprises an a proximately rectangular casting 1 provide at its front and rear ends with cylindrical sleeves 2 and 3 and at its sides with similar sleeves 4 4. The sleeves 2 and' 3 are in axial alinement with each other, and the sleeves 4 4, which are preferably disposed intermediate and at right angles to the sleeves 2 3, are likewise in axial alinement'.

The main driving shaft 5 which 'receives motion from any suitable source of power, pp'orted for rotation in a sleeve or hub 6 ongitu ldinally slidable in the cylinder 2, and provided at the ends thereof with flan' es 7 and 8 bearing against the interior wa of the cylinder. The sleeve 6 carries, between the front and rear ianges. 7 and 8, a slidable ring or collar 9 having a circumferential groove 10, and between said collar and the flange 8 at the rear end of the sleeve 6 is interposed a coiled extension spring 11 which serves, assumingY the collar 9 to be held stationary, to force `the sleeve 6 in a rearward direction.

The cylinder 2 is provided at its front end with a cap 12 secured in position detachably by means of screws or bolts 13; said cap affording a seat for one of the annular members 14 of an anti-friction bearing, the other annular member of which, 15, surrounds the motor drix'en shaft 5 and abuts upon a;

shoulder 16 upon said shaft; anti-friction balls 17 beino' inter osed between the said 'annular members w lich constitute the ballthe sleete 6; anti-friction balls 23 being interposed between the said annular members. It will be,A recognized that under this construction the two ends of the shaft are supported in anti-friction bearings, one set of anti-friction bearings serp-in a so to support the hub of /the friction dis 18; the atter beingrmo'fable longitudinally of the shaft with the slee e 6,while said shaft is'held securely against longitudinal movement.

The sides of the cylinder 2 are proiided with circular recesses or apertures 24 for which detachabley caps or closures 25 are pro ided, said caps affordin bearings for trunnion shafts 26 pro ided at t eir outer ends with cranks 27 and at their inner ends with eccentric disks 28 ha ing crank pins 29 provided with roller bearings 30 that en age under the impulse of the spring 11, which latter is compressed by the rearward morement of the collar.

The frame 1 is pro' ided with lugs or brackets 31 constitutlng bearings for a trans'- verse shaft 32 ha in a link or rod 34 leads to an operating lezer or treadle, not shown, by means of which the rock shaft 32 will be oscillated; said rock shaft is pro'.'ided with cranks 35 connected vby links 36 with the cranks 27 upon the trunnion shafts which latter may thus be rocked or oscillated lto effect the desired adjustment ofthe slee'.'e 6 and related parts.

The cylinders 4 4 at the sides of the frame accommodate slidable sleev 'es 37 han"- ing flanged ends pro ide-d with seats for suitably constructed anti-friction .bearings 38. Shafts 39 are supported for rotation in the anti-friction bearings 38, said shafts being pro ided with shoulders 40 abutting upon sald bearings, so that said shafts will be mo able with the slee es carrying the antifriction bearings. The slee es 37 are pro- '.ided with slidable collars 41 ha ing annular groo es 42; and coiled compression springs 43 are interposed between said collars and the flanges at the inner ends of the slee es. The cylinders 4 are pro ided at their outer ends with detachable caps 44 and with laterally extending perforated lugs 45 for the assage of bolts or other fastening rnemiiers whereby the frame 1 may be mounted securely in the chassis of an automobile or motor ehicle. The cylinders 4-4 are provided in their upper and under sides with diametrically opposite recesses or apertures 46 for which detachable ca s or closures 47 are pro ided; said caps or c osuresrbein secured in position by fastening means sul as screws or bolts 48. The caps 47 afford bearings for trunnion shafts 49 pro ided at their inner ends with eccentric disks 50 having crank pins 51 provided with roller bearings 52 engaging the annulargrooves 42 in the collars 41, which latter may thus be moved longitudinally within the cylinders 4 by oscillating the trunnion shafts. pro 'ided at their outer ends with'cranks 53 which are pi 'otally connected with the ends of crescent shaped curA 'ed or arcuate bars or yokes 54 pro ided intermediate -their ends with lugs or ears 55 which are connected by links 56 with cranks 57 upon the rock shaftv 32. It will thus be seen that when the latter is operated by operating the le 'er or treadle connected with the link 34, for of actuatin the trunnion shafts 26 connected with the cyinder 2; motion will at the same time be `transmitted to the trunnion shafts 49 of the cylinders 4, and the bearing slee 'es 4in said cylinders will be actuated to carry the shafts 39 in an inward direction.l l The shafts 39A are provided vat their inner ends withl friction disks 58 having beveled a crank 33 from which- The latter are.

the purpose i edges which are adapted to contact friction"- ally with the correspondingly beveled edge of the friction wheel 18 carried by the motor driven shaft 5. It will be readily observed that by manipulating the rock shaft 32, thfe tional edges o f saiddisks will be placed in engagement or contact'with each other. B y continuingthe oscillatory movement of the rock shaft, the springs interposed between the bearing sleeves and the grooved collars will become compressed, and exert pressure upon the bearing sleeves commensurate with the degree of oscillatory movement to which the rock shaft is subjected. 'lliu s, the con-- tact between the frictional transmission disks may be very accurately gaged and regulated according tothe necessities of the moment which are naturally governed by the amount of lload to be moved and by other considerations.

Supported for rotation in suitable antifriction bearings in the cylinder 3 is a shaft 59 which is intended to be directly connected with the parts that are to be driven this shaft carries a frictional transmission disk 60 which is longitudinally movable thereon and connected therewith for ,rotation by means of a feather or spline 61; the rim or periphery of the disk 60 is in frictionaltengagement with the faces of the oppositely disposed disks 58, from which it receives motion, asiwill be readily understoodythe degree of speed being regulated by the distance of the disk 60 from the axes of rotation of the disks 58 while, by moving the disk 60 diametrically across the faces of the disks 58 from one side of the axis to the other', the direction of rotation Will be reversed, as will be readily understood. Adjustment of the' disk 60 -is effected by means of .the slidably supporting adjusting rod 62 having a ring or co lar 63 envaging anfannular the hub of tile disk eo.

At times it is desired to secure whatis known as a direct drive, and this is obtained in the following manner. The friction disk 18 connected with the motor driven shaft is provided in the face thereof with a cavity or groove 64 in,v

Awheels 18 and 58-58 will be moved in direction of a common center, and the fric-i llt recess 65 in which is located a clutch ring 667 having a hub 66a keyed upon the transmission shaft 59, and said clutch ring being in the nature of a split ring provided at one lterminal with an inward extending lug 67 and at the. other adjacent terminal with'a suitably supported lever 68 having a set screw 69 bearing against the lug 67 and equipped with' a jam nut 70; this construction eing resorted to for the needed for the purpose of compensating for wear of said ring against the flange 71 at the edge of the recess orcavity 65 in which the clutch ring is seated. The hub 66 of thepupose of enabling the ring to be expande when I bearing clutch ring is provided with an inward extending lug 72 having an aperture 73 in the path of which the lever 68 is extended. The

transmission' disk 60, which is supported for v' longitudinal movement upon the shaft 59, carries a projecting Wedge 74 which is adapted to enter the aperture 73 adjacent to the lever 68, which latter, When rocked or oscillated by the action of the Wedge, will serve to expand the clutch ring, placing the latter in frictional engagement with the rim or flange 71 of the Wheel 18, and locking the 1 parts securely together for the direct transmission of power as will be readily understood.

Having thus fully described the invention, what is claimed as new is:-

1. In a frictional power transmitting device, a motor driven shaft, a friction Wheel supported upon said shaft for rotation therewith and for longitudinal sliding movement, a bearing member having an anti-friction for the shaft, a sleeve slidable in the bearing member and having an anti-friction bearing for the friction Wheel, a collar slidable upon the sleeve, a compression spring coiled upon the sleeve bearing at one end against the slidable collar and at the other end against a flange upon the. sleeve, and means for effecting longitudinal movement of the collar.

2. In a device of the class described, a shaft, a friction disk slidably and rotatably mounted" thereon, a bearing for the shaft, a non-rotatable sleeve through which the shaft extends, said sleeve having a bearing for the friction disk, a 'spring acting on the sleeve for advancing the friction disk, an adjusting member for regulating theV pressure of the spring, and operating means for advancing and retracting said adjusting member.

3.v In a device of the character described, a shaft, a. friction disk carried by the shaft, a lion-rotatable sliding sleeve surrounding the shaft, a spring acting on the sleeve to advance the friction disk, a sliding member' for compressing and relaxing the spring, and operating means for sliding said member.:

4. In a device of the character described a shaft, a friction disk carried by the shaft a udn-rotatable sliding sleeve surroundin the shaft and adapted in its reverse movv ments to advance and .retract thedisk, a spring acting on the sleeve, a movable mem ber for compressing and relaxing the spring, and-eccentric means for advancing and retracting said movable member.

5. In a device of the character described, a shaft, a friction dif-.ifi carried by the shaft', a sleeve surrounding the shaft and adapted to slide in reverse directions to effect the and permit a yielding retractive movement thereof, a second sleeve surrounding said y sliding sleeve and movable in reverse direcl tions to compress and relax the spring, and l means for operating said second sleeve.

6. In a device of the class described, a plurality of friction disks supported for movement inthe direction of acommon center and adapted for peripheral contact With each other', slidably mounted sleeves supporting said disks, circumferentially grooved collars upon the sleeves, springs engaging said collars and sleeves and forcing them in opposite directions, bearing members for the sleeves having oppositely disposed recesses, caps constituting closures for said recesses, trunnion shafts supported for oscillation in the caps and having eccentric disks provided With crank pins engaging the grooved collars, and means for rocking or oscillating the several trunnion shaftsL in unison.

7. Inr a device of the class described, a plurality of friction disks supported for movement in the direction of a common center and adapted for peripheral contact With each other, slidably mounted sleeves supporting said disks, circumferentially grooved collars slidable u on the sleeves, springs engaging said col ars and sleeves and forciing them in opposite directions, bearing members 4for the sleeves having oppositely I disposed recesses, caps constituting closures for said recesses, trunnion shafts supported for oscillation in`the caps and having eccentric disks provided with crank pins engaging vthe grooved collars, cranks upon the trunnion shafts, a ytransversely arranged rock -shaft having a plurality of cranks, links connectingI the cranks of the rock shaft with means for oscillating the rock shaft.

8. In a device of the character described, a shaft, a friction disk carried by the shaft, a non-rotatable sliding sleeve surrounding the shaft and adapted in its reverse movements to advance and retract the disk, a second sleeve slidably mounted on the first-named sleeve, a spring arranged to exert feeding pressure on the first-named sleeve and to be compressed and relaxed by reverse movements of the second sleeve, trunnions having eccentries oppositely connected with said second sleeve to move the same in reverse directions, and means for oscillating said trunnions.

9. In a device of the character described, a jshaft, a friction disk carried thereby, a non-rotatable sliding sleeve inclosing the shaft and movable in op osite directions to advance and retract the disk, a second sleeve slidably mounted on the first-named sleeve, a spring dis osed to be compressed and expanded by t e second sleeve and to advance and permit retraction of the first sleeve eccentrica operatively engaging the second sleeve', trunnitis carrying said eccentricsy the cranks upon the trunnion shafts, andi rock shaft, and connections between the rock shaft and the trunnions for oscillating the latter to slide said second sleeve in reverse directions.

10. In a device of the character described, a shaft, a friction disk slidably and rotatably mounted thereon, a bearing for the shaft, a non-rotatable sliding sleeve having a bearing for the disk, a second sleeve slidably mounted on the first-named sleeve, a spring interposed between portions of the sleeves for advancing the first-named sleeve and disk and permitting a yielding retraction thereof,

eccentric devices for adjusting the second sleeve, and means for operating said eccentric devices.

11. In a device of the'character described, a shaft, a friction disk carriedthereby, a slidably mounted sleeve for advancing and retracting the disk, a s ring expansible to advance the sleeve and isk, a second sleeve slidable in reverse directions to compress and relax the spring, eccentrics for operatin said second sleeve, trunnions carrying sai eccentrics, and means for oscillating the trunnions.

12. In a device of the characterdescribed, a bearing sleeve, a shaft, a friction disk carried thereby, a non-rotatable sliding sleeve disposed Within the bearing sleeve and surrounding the shaft, a spring for advancing said sleeve and disk, a second sleeve slidably mounted on the first-named .sliding sleeve to compress and relax the spring, operating means for said second sleeve mounted upon the said bearing sleeve, and means for transmitting motion to said operating means.

13.: In a device of the class described, a plurality of friction disks supported for movementin tht` direction of a common center and adapted for frictional contact with each other, and ineans'for simultaneously and resilient-ly forcing the disks in the direction of the said common center, each of said disks having independent resilient contact with the coacting disk oi' disks.

14. In a device of the class described, a plurality of friction disks supported for movement iin the direction of a common center for frictional contact with each other, spring means for advancing and yieldingly backing cach disk inits projected position, and means for simultaneously controlling the spring means of the several disks.

15. In a device of the character' described, a plurality of friction 'lisks supported for movement in the direction of a common center for contact with each other, an adjusting device connected With each disk, a spring for advancing and yieldingly backing each adjusting device, a second adjusting device associated with each spring and its adjusting device for compressing and expanding the spring, whereby the compression of the spring effects the projection of the disk and its yielding support in operative osition, means for operatlng said adjusting 'l -the atter action retract the first adjustin device, and means for adjusting the sai operating devices of all the disks in unison.

16. In a device of the character described, a plurality of friction disks supported for movement toward and fiom` a common center, feed devices for the several disks, each including a primary sliding adjusting device, a seconda@T sliding adjusting device, a spring disposed between said devices to exert expansive pressure on the primary adjusting device, means for operating the secondary adjusting device in reverse directions to respectively compress the spring and relax the spring and return the primary adjusting device to retracted position, and means for o erating the secondary adjusting devices of t 1e several disks in unison. j

17. In a device of the class described, a motor driven shaft, a bevel edged friction wheel supported thereon for rotation and having a cavity Yor recess, a transmission` shaft supported in axial alinement with the motor driven shaft, a friction Wheel longitudinally movable upon the transmission shaft, a clutch member consisting of a split ring secured upon, the transmission shaft and accommodated in the cavity ofthe friction Wheel u on the motor driven shaft, a hub on the s aft carrying said -ring and having a laterally extending apertured lu an expanding lever for the rmO Inovab' engaging the apertured lug, an a Wedge member projecting from the friction Wheel slidable upon the transmission shaft and adapted tol engage the expanding lever through the aperture in the lug'.

18. In a device of the class described, a plurality of friction disks supported for movement in theA direction of a common center for contact with each other, slidably mounted spring actuated sleeves supporting said disks, and means for exerting positive pressure against the actuating springs of the sleeves to effect simultaneous longitudinal movement of said sleeves.

19. In a device of the class described, a plurality of friction disks supported for movement in the direction of a common` cumferentially grooved collars 4u on saidV sleeves, springs engagingfsaid co lars and sleeves and forcing them in opposite directions, and means for effecting aunultaneous positive movement ofthe collars in the direction of and against the tension of the springs. y

20. In a device of the class described, a plurality of friction disks supported for movement in the direction of a common center for peripheral contact with each In testimony whereof I aiiix my signature olther, 1sllidebly moflrlnted pring atuatei inpresence of two Witnesses.

seeves avin antiiction earin s or sai disks, and megans for simultaneous y Placing EBENEZER H' MANNING 5 said actuating springs under tensionfor Witnesses:

forcing said disks in the direction of the WM. BAGGER, common center. JOHN L. FLETCHER. 

